Improvement in steam-jets for furnaces



G. STEELE.

Steam-lets for Furnaces.

Patented March 2,4875.

No.l60.480.

ZZZ 37266396) I 5% .7 m V THE GRAPH) CO.FHOTO-UYH-39&41 PARK PLACE,N.Y.

NTTED STATES PATENT ()EEIG GEORGE STEELE, OF MOTT HAVEN, NEW YORK, N. Y.

EMPROVEMENT IN STEAM-JETS FOR FURNACES.

Specification forming part of Letters Patent No. 160,480, dated March 2,1875; application filed September 3, 1874.

To all whom it may concern:

Be it known that I, GEORGE STEELE, of Mott Haven, New York city, in thecounty and State of New York, have invented an Improvement in Steam-Jetsfor SteamGenerator Furnaces, and for other purposes, of which thefollowing is a specification:

This invention relates especially to steamjets in the flue or chimney offurnaces for marine engines and other boilers, whereby anartiticial orforced draft is produced. 1t essentially differs from otherarrangements, in which there is combined with a steamjet a divided flueand a valve for one division of the flue, and in which jets of steam aredirected up the central divided portion of the flue by a series ofnozzles beneath, the annular space around the same being closed bysegmental dampers, which are opened when a natural draft is used. Myinvention consists in a central steam-supply chamber or reservoir withinthe chimney, provided with radial gas-pipes or hollow arms, havingdetachable nipple or nozzle connections, arranged to give a mosteffective distribution of the jets within the chimney withoutinterference with the natural draft, and dispensing with dampers; alsousing less steam than heretofore, and providing for contraction orexpansion of the apparatus to suit different-sized chimneys.

Figure l is a vertical elevation or diagram of my improved apparatusapplied to the chimney of a marine-engine boiler-furnace; Fig. 2, amainly sectional vertical view of said apparatus on a larger scale; andFig. 3 a partly sectional plan of the same.

A is a central steam chamber or reservoir,

in which a head of steam is kept or furnished to supply the severalnipples or nozzles. B B are the radial pipes from said reservoir, madeup in part of detachable nipple-connections 13 B carryingupwardly-projecting nipples or nozzles O O, at difl'erent distancesapart in the length of the horizontal or radial pipes B B, and the outerconnection B of said, pipes, or certain of them, having crosspipes andnipple-connections B 13 with attached upwardly-projectin g nipples ornozzles O C. By this construction of jet apparatus there is always-thatis, when the steam is turned ona full supply of steam to the jets, and amost efficient distribution of the steam over the whole or greater partof the area of i the chimney, and but little steam used, while theapparatus in no way interferes with the natural draft 5 and, by thedetachable screwconnections carrying the nipples, not only may any ofsaid connections and their nipples be readily removed for repair, butnipples of different sizes and connections of different lengths maybesubstituted to adapt the apparatus to dilferentsized chimneys. This jetis applicable to the ventilation of the holds or stoke-holes of vessels,Where its advantages are the same as in furnaces.

I claimlhe combination of the steam-reservoir A, the radial pipes B, thedetachable nipple-connections B B and the nipples O O, substantially asand for the purpose herein set forth.

GEO. STEELE.

Witnesses:

BENJAMIN W. HOFFMAN, FRED. HAYNES.

